US Patent No: 5,308,311

Number of patents in Portfolio can not be more than 2000

Electrically heated surgical blade and methods of making

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Abstract

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A hemostatic surgical blade and methods of manufacturing such blades are provided, wherein the blade comprises a laminate region having a hardenable center layer and highly thermally conductive outer layers, joined to a second region of a low thermal conductivity material. A heating element is secured to the laminate region and in thermal communication therewith to thermally reform the collagen of tissue as it is incised. The heat generated by the heating element is conducted to the cutting edge of the blade to maintain the cutting edge temperature within 20.degree. C. to 70.degree. C. of a user-selected operating temperature. The second region reduces the conduction of heat to the handle of the instrument. The heating element comprises a thermally conductive dielectric layer attached to an outer surface of the laminate region, resistive conductive elements deposited on the dielectric, a second dielectric layer covering the resistive conductor elements, and an abherent coating disposed thereon to reduce coagulum buildup on the blade.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GYRUS ACMI, INC.SOUTHBOROUGH, MA181
GYRUS ENT L.L.C.BARTLETT, TN55
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANYPALO ALTO, CA4

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eggers, Philip E 1750 Taylor St., Dublin, OH 221 39177
Shaw, Robert F 1750 Taylor St., San Francisco, CA 94108 22 2203

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Hemostatic Surgery Corporation (1)
* 4,848,337 Abherent surgical instrument and method 97 1986
 
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANY (2)
* 4,485,810 Surgical cutting blade 46 1980
* 4,481,057 Cutting device and method of manufacture 71 1981
 
MEGADYNE MEDICAL PRODUCTS, INC. (1)
* 4,785,807 Electrosurgical knife 162 1987
 
ELLMAN INTERNATIONAL, INC. (1)
* 4,754,754 Electrosurgical handpiece for blades and needles 64 1986
 
AMP-AKZO CORPORATION (1)
* 4,770,067 Method of manufacturing surgical cutting tools for thermally aided surgery 15 1987
 
GYRUS MEDICAL, INC. (2)
* 4,862,890 Electrosurgical spatula blade with ceramic substrate 104 1988
* 4,850,353 Silicon nitride electrosurgical blade 152 1988
 
EVEREST MEDICAL CORPORATION (2)
* 4,802,476 Electro-surgical instrument 106 1987
* 4,958,539 Method of making an electrosurgical spatula blade 82 1989
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
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SurgRX (1)
* 2004/0116,979 Electrosurgical instrument and method of use 30 2003
 
Hemostatix Medical Technologies, LLC (2)
* 2009/0112,200 Hemostatic surgical blade, system and method of blade manufacture 52 2007
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BAKERY HOLDINGS LLC (1)
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DOMAIN SURGICAL, INC. (30)
8,523,850 Method for heating a surgical implement 0 2009
8,523,851 Inductively heated multi-mode ultrasonic surgical tool 4 2009
8,523,852 Thermally adjustable surgical tool system 4 2009
8,506,561 Catheter with inductively heated regions 1 2009
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8,430,870 Inductively heated snare 0 2009
8,419,724 Adjustable ferromagnetic coated conductor thermal surgical tool 1 2009
8,414,569 Method of treatment with multi-mode surgical tool 0 2009
8,377,052 Surgical tool with inductively heated regions 14 2009
8,372,066 Inductively heated multi-mode surgical tool 7 2009
8,292,879 Method of treatment with adjustable ferromagnetic coated conductor thermal surgical tool 7 2009
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9,265,556 Thermally adjustable surgical tool, balloon catheters and sculpting of biologic materials 0 2011
9,078,655 Heated balloon catheter 0 2011
9,131,977 Layered ferromagnetic coated conductor thermal surgical tool 0 2012
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8,915,909 Impedance matching circuit 2 2012
8,858,544 Surgical instrument guide 0 2012
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8,425,503 Adjustable ferromagnetic coated conductor thermal surgical tool 0 2012
9,526,558 Sealing and/or cutting instrument 0 2012
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9,265,553 Inductively heated multi-mode surgical tool 0 2013
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9,265,554 Thermally adjustable surgical system and method 0 2013
9,265,555 Multi-mode surgical tool 0 2013
9,220,557 Thermal surgical tool 0 2013
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7,909,819 Monopolar electrosurgical return electrode 6 2006
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6,261,311 Method and apparatus for treating intervertebral discs 239 1999
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7,267,683 Method for treating intervertebral discs 44 2003
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7,309,336 Catheter for delivery of energy to a surgical site 45 2004
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8,226,697 Method for treating intervertebral disc 0 2007
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7,647,123 Method for treating intervertebral discs 21 2007
 
SURGINETICS INC. (13)
8,562,603 Method for conducting electrosurgery with increased crest factor 0 2006
8,357,154 Multielectrode electrosurgical instrument 0 2006
8,357,155 Multielectrode electrosurgical blade 0 2006
7,935,112 Electrosurgical instrument 0 2006
7,935,113 Electrosurgical blade 1 2006
7,896,875 Battery powered electrosurgical system 4 2006
7,867,225 Electrosurgical instrument with needle electrode 0 2006
7,867,226 Electrosurgical needle electrode 0 2006
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* 2007/0005,056 Electrosurgical Instrument With Blade Profile For Reduced Tissue Damage 35 2006
* 2007/0005,059 Electrosurgical Needle Electrode 34 2006
* 2007/0005,054 Electrosurgical Instrument 33 2006
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COVIDIEN LP (4)
8,292,888 Bipolar or ultrasonic surgical device 152 2002
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8,523,890 Bipolar or ultrasonic surgical device 0 2012
8,845,665 Bipolar or ultrasonic surgical device 0 2013
 
Hot Edge Oy (1)
* 2011/0099,742 Heated Ice Scraper 0 2009
 
ORATEC INTERVENTIONS, INC. (17)
6,482,204 Method and apparatus for controlled contraction of soft tissue 51 1996
* 6,068,628 Apparatus for treating chondromalacia 204 1996
6,461,353 Orthopedic apparatus for controlled contraction of collagen tissue 9 1997
6,168,593 Electrode for electrosurgical coagulation of tissue 180 1998
* 6,135,999 Concave probe for arthroscopic surgery 219 1998
* 5,954,716 Method for modifying the length of a ligament 247 1998
* 6,007,533 Electrocauterizing tip for orthopedic shave devices 69 1998
* 6,004,320 Clip on electrocauterizing sheath for orthopedic shave devices 65 1998
6,283,960 Apparatus for delivery of energy to a surgical site 98 1998
6,214,001 Electrocauterizing tool for orthopedic shave devices 105 1998
6,176,857 Method and apparatus for applying thermal energy to tissue asymmetrically 121 1998
6,358,273 Soft tissue heating apparatus with independent, cooperative heating sources 47 1999
6,350,262 Method and apparatus for applying thermal energy to tissue asymetrically 149 2000
6,391,028 Probe with distally orientated concave curve for arthroscopic surgery 107 2000
6,645,203 Surgical instrument with off-axis electrode 28 2001
6,695,839 Method and apparatus for treatment of disrupted articular cartilage 45 2001
6,645,204 Intervertebral disc device employing flexible probe 0 2001
 
MICROLINE SURGICAL, INC. (4)
6,287,305 Electrosurgical instrument 114 1997
6,241,723 Electrosurgical system 337 1999
6,533,781 Electrosurgical instrument 58 2000
7,377,919 Electrosurgical instrument 32 2004
 
ETHICON ENDO-SURGERY, INC. (39)
6,773,409 Surgical system for applying ultrasonic energy to tissue 416 2001
6,929,644 Electrosurgical jaw structure for controlled energy delivery 501 2001
6,913,579 Electrosurgical working end and method for obtaining tissue samples for biopsy 275 2002
* 2002/0169,392 Electrosurgical working end and method for obtaining tissue samples for biopsy 4 2002
7,083,619 Electrosurgical instrument and method of use 408 2002
6,802,843 Electrosurgical working end with resistive gradient electrodes 492 2002
* 2003/0069,579 Electrosurgical working end with resistive gradient electrodes 2 2002
6,926,716 Electrosurgical instrument 558 2002
* 2003/0144,652 Electrosurgical instrument 29 2002
7,011,657 Jaw structure for electrosurgical instrument and method of use 432 2003
7,112,201 Electrosurgical instrument and method of use 247 2003
* 2003/0171,748 Electrosurgical instrument and method of use 4 2003
7,041,102 Electrosurgical working end with replaceable cartridges 511 2003
* 2003/0220,637 Electrosurgical working end with replaceable cartridges 34 2003
6,905,497 Jaw structure for electrosurgical instrument 412 2003
* 2003/0199,870 Jaw structure for electrosurgical instrument 21 2003
7,070,597 Electrosurgical working end for controlled energy delivery 423 2003
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7,087,054 Electrosurgical instrument and method of use 414 2003
7,169,146 Electrosurgical probe and method of use 397 2004
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7,189,233 Electrosurgical instrument 228 2004
7,354,440 Electrosurgical instrument and method of use 231 2004
7,309,849 Polymer compositions exhibiting a PTC property and methods of fabrication 197 2004
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7,381,209 Electrosurgical instrument 202 2007
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7,981,113 Electrosurgical instrument 64 2008
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9,149,326 Electrosurgical instrument and method 0 2013
 
SUMITOMO RUBBER INDUSTRIES, LTD. (1)
7,449,019 Intervertebral decompression 42 2003
 
OLYMPUS CORPORATION (1)
7,458,969 Therapeutic device for tissue from living body 0 2002
 
TEAM MEDICAL, LLC (2)
* 2010/0222,773 COATING SUITABLE FOR SURGICAL INSTRUMENTS 1 2010
9,474,567 Method for coating surgical instruments 0 2014
 
Hemostatix Medical Techs, LLC (1)
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NIKON CORPORATION (1)
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PALOMAR MEDICAL TECHNOLOGIES, LLC (1)
8,915,948 Method and apparatus for photothermal treatment of tissue at depth 1 2008
 
AMADA SURGICAL, INC. (2)
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A.T.C.T. Advanced Thermal Chips Technologies Ltd. (1)
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SYNERON MEDICAL LTD. (1)
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WATLOW ELECTRIC MANUFACTURING COMPANY (1)
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Applied Komatsu Technology, Inc. (1)
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OLYMPUS OPTICAL CO., LTD. (2)
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6,511,479 Electrosurgical blade having directly adhered uniform coating of silicone release material and method of manufacturing same 52 2001
 
Aseptico, Incorporated (1)
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7,150,747 Electrosurgical cutter 43 2003
 
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6,464,701 Bipolar electrosurgical scissors 272 2000
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LINVATEC CORPORATION (2)
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Clinicon Corporation (1)
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CYNOSURE, INC. (3)
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SENORX, INC. (1)
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GFD Gesellschaft fur Diamantprodukte mbH (1)
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* Cited By Examiner